package com.geo.keyword.service;

import com.geo.keyword.entity.KeywordAnalysisRequest;
import com.geo.keyword.entity.KeywordAnalysisResponse;
import lombok.extern.slf4j.Slf4j;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.concurrent.CompletableFuture;

/**
 * 关键词分析服务
 * 提供关键词分析、扩展和优化功能
 * 
 * @author GEO Team
 * @version 1.0.0
 */
@Slf4j
@Service
public class KeywordAnalysisService {
    
    private static final Logger logger = LoggerFactory.getLogger(KeywordAnalysisService.class);
    
    /**
     * 分析关键词
     * @param request 分析请求
     * @return 分析响应
     */
    public KeywordAnalysisResponse analyzeKeyword(KeywordAnalysisRequest request) {
        logger.info("开始分析关键词: {}", request.getKeywordText());
        
        // 创建模拟响应
        KeywordAnalysisResponse response = new KeywordAnalysisResponse();
        response.setAnalysisId("analysis_" + System.currentTimeMillis());
        response.setKeywordText(request.getKeywordText());
        response.setCompetitionAnalysis("竞争度分析结果");
        response.setSearchIntentAnalysis("搜索意图分析结果");
        response.setOptimizationSuggestions("优化建议");
        response.setConfidenceScore(85.0);
        
        return response;
    }
    
    /**
     * 异步分析关键词
     * @param request 分析请求
     * @return 分析结果Future
     */
    public CompletableFuture<KeywordAnalysisResponse> analyzeKeywordAsync(KeywordAnalysisRequest request) {
        return CompletableFuture.supplyAsync(() -> analyzeKeyword(request));
    }
    
    /**
     * 批量分析关键词
     * @param requests 分析请求列表
     * @return 分析响应列表
     */
    public List<KeywordAnalysisResponse> batchAnalyzeKeywords(List<KeywordAnalysisRequest> requests) {
        return requests.stream()
                .map(this::analyzeKeyword)
                .toList();
    }
    
    /**
     * 获取关键词扩展建议
     * @param seedKeyword 种子关键词
     * @param merchantId 商家ID
     * @param industry 行业
     * @return 扩展关键词列表
     */
    public List<String> getKeywordExpansions(String seedKeyword, String merchantId, String industry) {
        logger.info("获取关键词扩展建议: {}", seedKeyword);
        // 返回模拟的扩展关键词
        return List.of("扩展关键词1", "扩展关键词2", "扩展关键词3");
    }
}